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    Proof/logic

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    To prove a statement "If P then Q", it is valid to prove which of the following statements instead?
    A. If not Q then not P
    B. If Q then P
    C. If not P then not Q
    D. Q only if P
    E. Both P and Q are true

    © BrainMass Inc. brainmass.com December 24, 2021, 4:55 pm ad1c9bdddf
    https://brainmass.com/math/discrete-math/proof-logic-15913

    Solution Summary

    This discusses how to proof one conditional by proving a similar conditional.

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